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post #1501 of 7305
Nice looking kites PR, looks like your pretty good at making those. You would love it over here in england, constantly windy tongue.gif
post #1502 of 7305
Hi guys,

I've been getting the 764x wu for my GPUs for 2 days and the ppd really took a hit. The GPU usage never hits higher than 80% for some reason. Is there anyway to avoid those WUs?
Quote:
That could be it, I'm not positive exactly what issues will show up if having both -advmethods and -bigadv enabled at the same time, but only one at a time should be used. Hope you pick up a BA this time.

Still no BA. Man, this is depressing.

BTW, are some of you guys using a VM for the CPU folding? If so can you use all your cores (ie: smp 12 for me)? When I do, my gpu folding takes a huge hit and the PC can't be used at all (slowed to a crawl). I either have to limit the CPU max usage in virtualbox or add the flag smp 11 for the pc to remain usable.
Edited by yannickhk - 4/3/12 at 7:37pm
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Red devil
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post #1503 of 7305
Thanks.
Pretty decent, can always be better tho.

Yea those units are pretty dodgy. Opened a thread on the FF no ones, answered yet.
Saw 86% load on the couple I got, one failed repeatedly around the same step. Haven't gotten one since Saturday tho.
 
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Cinema-Plex
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post #1504 of 7305
hmm interesting. Ive had nothing but 803x work units, these are worth like 25,000ppd. Ask zodac yan or post in the folding thread
post #1505 of 7305
From the folding forum: 85% GPU Usage

Quote:
Posted by tjlane of PG

I believe that this might be an unfortunate an common issue/feature of the p764x series going forward. The limitations are likely not software related, but hardware imposed. Specifically, these projects need to do a lot more file I/O than previous GPU projects, and the PCI bus that connects most GPUs to their motherboards are terribly slow. Since the calculations on the GPU are so fast, the PCI bus can't always keep up, and I suspect that this might be a limiting factor for these projects.

That said, the GPU performance still beats CPUs for these guys, so even though you're running at 85%, there is a significant speedup from the science end. So thanks for folding!

Quote:
Update
Having searched the web, I have come across a thread in the EVGA folding forums in which several other people are relating to the same issues i am having with this project. I must therefore conclude that the limiting factor is indeed PCI bus speed or latency. I have gone through all the release notes from previous NVidia drivers and rolled back to a previous driver to no avail. . . Bring on PCIe 3!

Another problem exists, all be it from a research point of view: The solution found on EVGA's forum for this problem is to remove the -advmethods flag from the GPU client, thus preventing project 764x from being downloaded. I believe many will take this option due to the drop in "points per day" from undertaking one of these projects over any other available work units and due to either not having the available overhead on their GPUs to overclock, or not having the stomach for it. The only options I can see, from Stanford's point of view would be either to distribute project 764x to those without the -advmethods flag specified in their client configuration (which would seem rather unfair), or to review the points awarded to completed simulations of project 764x in favour of their completion.

Seems to indeed be caused by a lack of bandwidth on PCI-E.
What you're cards running in Yan? My 570 is in x8 mode and gets 85-87% with those units.
 
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post #1506 of 7305
3 x GTX580 x16/x16/x8 and it's running at 92% (~) when the CPU isn't folding. With the CPU folding, it drops to 80%.
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post #1507 of 7305
What happens yan when you set the cpu folding to use 1 less core? does gpu folding go to full? This is a long shot also but have you actually set the gpu folding to full 100%? I used to have similar problem like yours with my gpu folding when I used the system tray client, I thought it mean cpu priority so I didnt have that to 100%, but it meant gpu core priority, which I then put to 100% and it worked at 100% after that.
post #1508 of 7305
Quote:
Originally Posted by yannickhk View Post

3 x GTX580 x16/x16/x8 and it's running at 92% (~) when the CPU isn't folding. With the CPU folding, it drops to 80%.

I have a core and thread dedicated to my gpu clients(570 and 9500GT) with them both running with the core priorty set to low from idle. For me, even running just the 570 by-itself didn't increase its usage, but that might be due to my raid card.
 
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post #1509 of 7305
Quote:
Originally Posted by $ilent View Post

What happens yan when you set the cpu folding to use 1 less core? does gpu folding go to full? This is a long shot also but have you actually set the gpu folding to full 100%? I used to have similar problem like yours with my gpu folding when I used the system tray client, I thought it mean cpu priority so I didnt have that to 100%, but it meant gpu core priority, which I then put to 100% and it worked at 100% after that.

it turns out that it was a buggy WU. Everything is okay now.

I finally got my first bigadv WU, 6900 (8, 9, 150). Yay. I boosted the overclock to 5.3Ghz (still stable, at least with FAH, haven't tried prime95). TPF: 00.12.35 wheee.gif
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post #1510 of 7305
5.3ghz jees, what ppd you getting?
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